SIPSorcery.SIP.SIPTransport.CreateUASTransaction C# (CSharp) Method

        public UASInviteTransaction CreateUASTransaction(SIPRequest sipRequest, SIPEndPoint dstEndPoint, SIPEndPoint localSIPEndPoint, SIPEndPoint outboundProxy, bool noCDR = false)
        {
            try
            {
                if (localSIPEndPoint == null)
                {
                    localSIPEndPoint = GetDefaultSIPEndPoint();
                }

                CheckTransactionEngineExists();
                UASInviteTransaction uasInviteTransaction = new UASInviteTransaction(this, sipRequest, dstEndPoint, localSIPEndPoint, outboundProxy, ContactIPAddress, noCDR);
                m_transactionEngine.AddTransaction(uasInviteTransaction);
                return uasInviteTransaction;
            }
            catch (Exception excp)
            {
                logger.Error("Exception CreateUASTransaction. " + excp);
                throw;
            }
        }

            public void AckRecognitionUnitTest()
            {
                SIPTransport clientTransport = null;
                SIPTransport serverTransport = null;

                try
                {
                    SIPTransactionEngine clientEngine = new SIPTransactionEngine();     // Client side of the INVITE.
                    SIPEndPoint clientEndPoint = new SIPEndPoint(SIPProtocolsEnum.udp, new IPEndPoint(IPAddress.Loopback, 12013));
                    clientTransport = new SIPTransport(MockSIPDNSManager.Resolve, clientEngine, new SIPUDPChannel(clientEndPoint.GetIPEndPoint()), false);
                    SetTransportTraceEvents(clientTransport);

                    SIPTransactionEngine serverEngine = new SIPTransactionEngine();     // Server side of the INVITE.
                    UASInviteTransaction serverTransaction = null;
                    SIPEndPoint serverEndPoint = new SIPEndPoint(new IPEndPoint(IPAddress.Loopback, 12014));
                    serverTransport = new SIPTransport(MockSIPDNSManager.Resolve, serverEngine, new SIPUDPChannel(serverEndPoint.GetIPEndPoint()), false);
                    SetTransportTraceEvents(serverTransport);
                    serverTransport.SIPTransportRequestReceived += (localEndPoint, remoteEndPoint, sipRequest) =>
                    {
                        Console.WriteLine("Server Transport Request In: " + sipRequest.Method + ".");
                        serverTransaction = serverTransport.CreateUASTransaction(sipRequest, remoteEndPoint, localEndPoint, null);
                        SetTransactionTraceEvents(serverTransaction);
                        serverTransaction.GotRequest(localEndPoint, remoteEndPoint, sipRequest);
                    };

                    SIPURI dummyURI = SIPURI.ParseSIPURI("sip:dummy@" + serverEndPoint);
                    SIPRequest inviteRequest = GetDummyINVITERequest(dummyURI);
                    inviteRequest.LocalSIPEndPoint = clientTransport.GetDefaultTransportContact(SIPProtocolsEnum.udp);

                    // Send the invite to the server side.
                    UACInviteTransaction clientTransaction = new UACInviteTransaction(clientTransport, inviteRequest, serverEndPoint, clientEndPoint, null);
                    SetTransactionTraceEvents(clientTransaction);
                    clientEngine.AddTransaction(clientTransaction);
                    clientTransaction.SendInviteRequest(serverEndPoint, inviteRequest);

                    Thread.Sleep(500);

                    Assert.IsTrue(clientTransaction.TransactionState == SIPTransactionStatesEnum.Completed, "Client transaction in incorrect state.");
                    Assert.IsTrue(serverTransaction.TransactionState == SIPTransactionStatesEnum.Confirmed, "Server transaction in incorrect state.");
                }
                finally
                {
                    if (clientTransport != null)
                    {
                        clientTransport.Shutdown();
                    }

                    if (serverTransport != null)
                    {
                        serverTransport.Shutdown();
                    }
                }
            }